Coiling or winding apparatus



Nov. 17,1925. l 1

J. D. JORDAN ET AL CDILING-v 0R WINDING APPARATUS Filed June l, 1921 2Sheets-Sheiet 1` Patented Nov. 17, 1925.

UNITED STATES PATENT oF-F1c1-z. i

JAMES DENNY JORDAN, OF RIVERSIDE, AND ARCHIE JOSEPH.' DOWD, OF CICERO,ILLINOIS, ASSIGNORS TO WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEWYORK, Y., A CORPORATION 0F NEW YORK.

COILING OR WINDING APPARATUS.

Application filed June 1,

To all whom t may concern:

Be it lmown that we, JAMES DENNY Jon- DAN and ARCHIF. JOSEPH Down,citizens of the United States, residing at Riverside, in the county ofCook and State of Illinois, and at Cicero, in the county of Cook andState of Illinois, respectively, have invented certain new and usefulImprovements in Coiling or Winding Apparatus, of which the following isa full, clear, concise, and exact description.

This invention relates to coiling or winding apparatus, and moreparticularly to an apparatus for coiling wire or similar material aroundan arbor with the adjacent coils or turns lying close together.

The object of the invention is -to provide an automatically operatedmechanism for winding a continuous strip or coil with separated portionsof a predetermined length located at predetermined positions in thelength of the coil.

In accordance with the general features of this invention, there isprovided a mechanism in which a rotatable arbor receives the wire ormaterial from a supply reel located adjacent to the arbor and fedlongitudinally thereof by means of a feed screw. A guide arm movableindependently of the supply reel is adapted to be advanced independentlyof the supply reel at certain predetermined positions along the lengthof the arbor and at a speed which will provide an interruption in theclose formation of the helix upon the arbor.

In the drawings:

Fig. 1 is a view in front elevation of a mechanism embodying thefeatures of the invention;

Fig. 2 is a fragmentary plan view of parts shown in Fig. 1;

Fig. 3 is an enlarged detail sectional view of a chuck for holding thearbor wire;

Fig. 4 is an enlarged end view in section taken upon line 4-4 of Fig. 1;

Fig. 5 is an enlarged view showing the coil or helix upon the arbor; and

Figs. 6 and 7 are views of miniature incandescent lamps supporting wiresillustiating an application of the coil produced by the mechanism ofthis invention.

As shown in the drawings, 5 designates a base plate having mounted atopposite ends thereof upright frame members 6, 7, 8, and

1921. seriai No. 474,141.

9. The mechanism as a whole is driven from a belted pulley 10 mountedupon a shaft l1 which is journalled between the upright frame members 8and 9. Upon the inner end of the shaft 11 isa chuck 12 adapted to clampand hold one end of an arbor wire 13, the other end of which is securedin a similar chuck 14 carried by a shaft 15 journalled between theuprights 6 and 7. Mounted upon the shafts 11 and 15 are pinions 16-16meshing with gears 17-17 upon spindles 18-18, which spindles also carrypinions 19-19 meshing with gears 20-20 upon opposite ends of a feedscrew 21 journalled between the upright members 7 and 8.

Engaging with the screw 21 is a frame 22 having a threaded portion andadapted to be fed longitudinally of the feed screw by the rotationthereof. The frame 22 is provided with an opening, throughl which asupporting rod 23 secured at opposite ends to the upright members 7 and8 extends and upon which the frame freely slides. At the rear of thefra-me is an upwardly extending fork member 25, between the arms ofwhich is supported a supply spool or reel 26 carrying the material whichis to be coiled. At its forward end the frame member 22 carries abracket member 30 having a platform 31 upon which is slidably supporteda plate 32 provided upon its upper face with an arcuated toothed portion33 and being connected by means of a post 34 with a guide arm 35pivotally supported at 36 upon the fork member 25. This pivotal guidearm 35 carries rollers or pulleys 37 and 38 under and over which thematerial from the supplj spool 26 is led to the arbor 13. the arcuatedportion 33 is pivotally mounted upon the upper end of a bell crank lever41 which is pivotally secured to the bracket 30. At its other end thebell crank lever is connected with a spring actuated plunger member 42slidably mounted in the lower end of a bracket 43 and provided with aportion 44 adapted to co-operate with surfaces of cams 45 and 46. Thesecams are adjustably mounted upon parallel bars 48 and 49 secured to theupright frame members 7 and 8.

An upwardly extending arm 50 upon the frame 22 supports the pivotalguide arm 35 midway of its ends and provides a friction which retardsthe free movement of the arm 35.

The chucks 12 and 14 are similar in structure and comprise the taperedjaws 55 and 56 which are backed by a spring 57 located within a shell 58tapered at its end and adapted to engage the chuck jaws 55 and 56 toclamp them upon the arbor 13 by the action of the spring 57. peratingpins 59 and 60 secured to the jaws and extending through slots 61 and 62arel provided for the purpose of releasing the jaws of the chuck fromthe arbor in a well-.known manner. i

A spindle 65 upon which the supply reel 26 is supported has its'advancing end surrounded by a spring, which normally tends to hold thesupply reel 26 against a bushing 71 upon the opposite end of thespindle. K

The surfaces 4of the ca ins'45 and 46 are provided with ditferentslopes,the purposes of which will be apparent from the following description ofthe operation of this invention.

Referring now to its operation, it is assumed that the arbor 13, whichis in the form of a wire, is secured in place between the chucks 12 and14, The end of the material from the supply reel 26 will be wrappedaround a lug upon vthe chuck 12. rlhe plunger arm 42I will be adjustedso that the lower point thereof is just engaging-the lowest point on thecam 45. The. speed of the feed screw 21 is such that the arbor 13 willmake approximately fifteen revolutions to one revolution of the feedscrew. As the arbor 13 is driven :from the pulley 1() it will cause thematerial from the supply reel 26 to be wrapped around it in closespiraled relation, and the frame 22 carrying the reel 26 andv the *guidearm 35 will be advanced longitudinally of the arborlby the operation ofthe feed screw 21. As this advance oftheframe takes'place theplungermember 42 will be gradually raised by the face of the cam 45, thusswinging thcbell crank lever 41 and moving the pawl 4() backwardly overthe teeth of the toothed plate A32v until the end 44 of the plungermember 42 drops overv the forward edge of the cam 45.v whereupon thepawl will be swungforward at a greater speed than the yspeed ofy themovement of the frame, therebyv advancingthe toothed plate 32 guide arm35 connected therewithrapidly over a space equal to the amount that thepawl was moved backwardly during the time that the plunger was inengagement with the face of the cam 45.. As shown in F 5, this willproduce a bre-ak in the close relation of the spirals of the coil, suchas is indicated atl on the drawing. As there is a certain amount offriction between the pivotal guide arm 35 and the upper end of theupwardly extending member 50, this arm will remain in practically thisposition relative to the frame 227 so that as the feed screw continuesto advance, the coiling` of the i'naterialr in close spiral relationwill be repeated until the plunger member 42 again drops over the frontedge of the succeeding cam.

lAs will be noted from the drawing, the faces of the cams 46-46 arelonger than those of the. cams 4545 and are hi gher at their rear edges,which will cause the bell crank lever 41 to swing the pawl 4()backwardly over a larger number of 'teeth than in the case of the cam45, thereby causing the advance of the guide arm to be greater than itwas in the case of the cam 45. y The result of this is that withv thecombination of cams shown on the drawing there will be three intervalsof the length indicated at 85 for each one interval ofthe length ofseparation indicated at S6 on Fig. 5.

At the end of an operation the frame 22 will be to the right of itsstartingI position. as shown in the drawings. After cutting the wirefrom the supply reel and suitably securing the end thereof, the arbor 13with the helices wound thereon is removed from the machine by releasingthe chucks 12 and 14. To reset the mechanism for a second operation, theframe 22 is turned counter clock-wise about its pivot on the rod (asshowny in Fig. 4) to disengage the threaded portion thereof from thefeed screw 21, and thereafter the frame may be freel \v slid on the rod23 toy its starting position as shown. During the operation of themachinethc toothed plate 32 will have move-:l counter clock-wisey aboutthe pivot 36 (as shown in Fig. 2) independent of the movement of thecarrier 22, and to reset it the pawl is merely raised from engagementwith the teeth on the plate 327 which may then ybc'turnml about itspivot 36 clock-dseto itsy starting'position. A new arbor is next securedin place between the chucks 12 and 14iandthe end of the material fromthe supply reel 26 is wrapped around the lug'BO. Thereaftenthe mechanismopera-tes as before described.

In the particular applieation of this inyention which is illustrated themechanism ls'used in the production of filaments vfor miniatureincandescent lamps. The points of separa-tion in the coil are the pointsat which these filaments will be attached to their supporting wires orstandards7 as illustrated in Figs. 6 and 7. In these particular lampsthere are four points of support-two above and two below/hand the point'of longer separation is provided as the cuttin' or spreading pointbetween adjacent filaments, a large number of which may be lwound uponthe same arbor by vmeans of this mechanism.

What is claimed is: l. In a coil winding mechanism in combination, anarbor means for forming material around said arbor in a close helix,driving means for causing relative rotative movement between said arborand said forming means, and adjustable means for causing periodicinterruptions of different lengths in the uniformity of the helixwithout interrupting the continuity of the material being wound.

2. In a coil winding mechanism in combination, an arbor, means forforming material around said arbor in a close helix, driving means forcausing relative rotative movement between said arbor and said formingmeans, and adjustable means for causing periodic interruptions ofdifferent lengths in the uniformity of the helix Without interruptingthe continuity of the material being wound, said means operatingsimultaneously with said driving means.

3. In a coil winding mechanism in combination, an arbor, means forforming material around said arbor in a close helix, driving means forcausing relative rotative movement between said arbor and said formingmeans, and adjustable cam devices for causing periodic interruptions ofdifferent lengths in the uniformity of the helix without interruptingthe continuity of the material being wound.

4. In a coil winding mechanism, in combination a rotatable arbor, a feedscrew, a material supply reel, a support therefor to movelongitudinally. of said arbor by said feed screw t0 wind the materialupon the arbor in close spiraled relation, a guide means for thematerial pivotally supported upon the supply reel support, and means forautomatically moving said guide arm independently of said reel supportto increase the distance between adjacent spirals of the coil atpredetermined points.

5. In a coil winding mechanism, in combination a rotatablearbor, a feedscrew, a frame co-operating with said feed screw, a supply reelsupported upon said frame and moved longitudinally of said arbor by thefeed screw to apply the material from the supply reel to said arbor inclose spiraled relation, a guide arm pivotally mounted upon the movableframe, a pawl and ratchet mechanism for moving said arm independently ofthe movement of its support, and means controlled in the movement ofsaid support to actuate said pawl and ratchet mechanism.

6. In a coil winding mechanism, in combination a rotatable arbor, a feedscrew, a frame operated by the feed screw, a supply reel supported uponsaid frame and moved longitudinally of said arbor by the feed screw toapply material from the supply reel to the arbor in close spiraledrelation, a guide arm for the material pivotally supported upon theframe, a toothed rack movable with said guide arm, a pawl adapted toengage the toothed rack to move it independently of the movement of theframe, a plurality of cams, and means connected with said pawl andcontrolled by said cams in the movement of the frame to operate the pawlto move the guide arm independently of the movement of the frame.

7. In a coil winding mechanism in combination, an arbor, means includinga guide for forming material around said arbor in a close helix, meansfor causing periodic interruptions in the uniformity of the helixwithout interrupting the continuity of the material being wound, andmeans for normally retarding the free movement of said guide relative tosaid forming means.

In witness whereof, we hereunto subscribe our names this 14th day of MayA. D., 1921.

JAMES DENNY JORDAN. ARCI-IIE JOSEPH DOWD.

